A feature-rich Android WebView browser application that provides a simple yet powerful web browsing experience with advanced JavaScript integration capabilities.

• WebView Browser: Full-featured web browsing with URL input and navigation
• Intent Integration: Launch URLs via Android intents from other applications
• JavaScript Interface: Custom Android-JavaScript bridge for app interactions
• File Browser: Open and load local files through system file picker
• JavaScript Injection: Runtime JavaScript code injection for web page manipulation
• Multi-Activity Architecture: Different WebView configurations for various use cases

• WebView Debugging: Chrome DevTools integration for debugging (API level 19+)
• Cookie Management: Full cookie support for web sessions
• Permissions: Camera, microphone, and audio recording permissions for media-rich web apps
• Custom User Agent: Android app proxy interface accessible from JavaScript
• Responsive Design: Handles orientation changes and screen configurations
• Background Navigation: Browser-style back/forward navigation

app/src/main/java/com/bh/android/browser/
├── MainActivity.java           # Main browser activity with full UI
├── WebViewActivity.java        # Simple WebView activity for intent handling
├── WebViewHostActivity.java    # Full-screen WebView host
├── WebViewFragment.java        # Reusable WebView fragment
├── InputTextFragment.java      # JavaScript injection input dialog
└── AppJavaScriptProxy.java     # JavaScript-Android bridge interface

The primary browser interface featuring:

• URL input field with keyboard shortcuts
• Progress bar for page loading indication
• Menu options for JavaScript injection and file opening
• Full WebView configuration with debugging enabled
• Cookie management and JavaScript interface

Simplified WebView activity designed for:

• Handling ACTION_VIEW intents from other apps
• Display-only web content with basic navigation
• Title and URL display in text views
• Minimal UI for focused content viewing

Full-screen WebView experience with:

• Fragment-based architecture
• Immersive mode with hidden action bar
• Intent parameter processing
• Navigation bar hiding for distraction-free browsing

The app provides a custom JavaScript interface accessible via androidAppProxy:

// Get device serial number
var deviceId = androidAppProxy.getDeviceId();

// Navigate back
androidAppProxy.back();

// Get access key (base64 encoded)
var accessKey = androidAppProxy.getAccessKey();

// Hide action bar (when in WebViewHostActivity)
androidAppProxy.hideActionBar();

The app requires the following permissions:

• INTERNET - Web browsing functionality
• ACCESS_NETWORK_STATE - Network connectivity checks
• MICROPHONE - WebRTC audio features
• RECORD_AUDIO - Audio recording in web apps
• MODIFY_AUDIO_SETTINGS - Audio configuration
• CAMERA - WebRTC video features
• WRITE_EXTERNAL_STORAGE - File downloads and storage

• Target SDK: 28 (Android 9.0)
• Minimum SDK: 14 (Android 4.0)
• Build Tools: 28.0.3
• Support Library: 28.0.0

// Enable JavaScript and debugging
mWebView.getSettings().setJavaScriptEnabled(true);
WebView.setWebContentsDebuggingEnabled(true);

// Media playback without user gesture
mWebView.getSettings().setMediaPlaybackRequiresUserGesture(false);

// JavaScript interface
mWebView.addJavascriptInterface(new AppJavaScriptProxy(this, mWebView), "androidAppProxy");

The app responds to ACTION_VIEW intents, allowing other apps to open URLs:

<intent-filter>
    <action android:name="android.intent.action.VIEW" />
</intent-filter>

Users can inject custom JavaScript code at runtime through the injection fragment, enabling:

• DOM manipulation
• Custom functionality addition
• Debugging and testing
• Web page enhancement

1. Clone the repository
2. Open in Android Studio
3. Build and run on device or emulator

1. Launch the app
2. Enter URL in the address bar
3. Press Enter or Go to navigate

Other apps can open URLs in this browser by sending ACTION_VIEW intents.

1. Click the injection icon in the toolbar
2. Enter JavaScript code in the dialog
3. Click "Inject" to execute the code on the current page

1. Click the file icon in the toolbar
2. Select a file from the system file picker
3. The file will be loaded in the WebView

• The app uses Android Support Library for backward compatibility
• WebView debugging is enabled for development builds
• All activities handle orientation changes gracefully
• The app supports both HTTP and HTTPS with cleartext traffic allowed
• Custom error handling and progress indication throughout the app